package com.ufm.security.action;

import java.awt.image.BufferedImage;
import java.util.Date;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import com.google.code.kaptcha.Constants;
import com.google.code.kaptcha.Producer;
import com.ufm.syslog.pojo.Syslog;
import com.ufm.syslog.service.ISyslogService;
import com.ufm.user.pojo.User;
import com.ufm.user.service.IUserService;

@Controller
public class LoginController {
	@Autowired
	private Producer captchaProducer;
	@Autowired
	private IUserService userService;
	@Autowired
	private ISyslogService syslogService;
	
	@RequestMapping(value="/login")
	public String login(Model model,HttpServletRequest request) {
		if(request.getParameter("error")!=null){
			request.setAttribute("error",true);
		}
		return "login/login";
	}
	
	@RequestMapping(value="/accessDenied")
	public String accessDenied(Model model,HttpServletRequest request) {
		return "login/accessDenied";
	}
	
	@RequestMapping(value="/index")
	public String index(Model model) {
		return "index";
	}
	
	@RequestMapping("/login-code")  
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {  
  
        response.setDateHeader("Expires", 0);  
        // Set standard HTTP/1.1 no-cache headers.  
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");  
        // Set IE extended HTTP/1.1 no-cache headers (use addHeader).  
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");  
        // Set standard HTTP/1.0 no-cache header.  
        response.setHeader("Pragma", "no-cache");  
        // return a jpeg  
        response.setContentType("image/jpeg");  
        // create the text for the image  
        String capText = captchaProducer.createText();  
        // store the text in the session  
        request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);  
        // create the image with the text  
        BufferedImage bi = captchaProducer.createImage(capText);  
        ServletOutputStream out = response.getOutputStream();  
        // write the data out  
        ImageIO.write(bi, "jpg", out);  
        try {  
            out.flush();  
        } finally {  
            out.close();  
        }  
        return null;  
    }
	
	@RequestMapping("/loginValidate")  
    public String validateLogin(HttpServletRequest request, HttpServletResponse response) throws Exception {  
		String name = request.getParameter("name");
		String password = request.getParameter("password");
		String code = request.getParameter("code");
		String key = request.getSession().getAttribute(Constants.KAPTCHA_SESSION_KEY).toString();
		User user = userService.findByName(name);
		request.setAttribute("name",name);
		request.setAttribute("pwd", password);
		request.setAttribute("code", code);
		if(user!=null&&password.equals(user.getUserPwd())&&code.equalsIgnoreCase(key)){			
			Syslog syslog = new Syslog("登录", "登录", 1, user.getUserId(), user.getUserName(), request.getRemoteAddr(), new Date());
			syslogService.insert(syslog);
			request.getSession().setAttribute("user",user);
			return "redirect:/syslog/findByDate";
		}else if(user!=null&&!password.equals(user.getUserPwd())){
			request.setAttribute("msg", "password");
			return "forward:/login";
		}else if(user!=null&&!code.equalsIgnoreCase(key)){
			request.setAttribute("msg", "code");
			return "forward:/login";
		}else{
			request.setAttribute("msg", "error");
			return "forward:/login";
		}
    }
}